Answer:
[tex]w = 1.75\,ft[/tex] and [tex]h = 0.75\,ft[/tex]
Step-by-step explanation:
The dimensions of the rectangular fountain are derived by some algebraic handling:
[tex]A = (x+5)\cdot (x+4)[/tex]
The length of the walkway is:
[tex]2\cdot \left[(x+5) + (x + 4)] = 5\,ft[/tex]
[tex]2\cdot x + 9 = 2.5[/tex]
[tex]x = -3.25[/tex]
The dimensions of the walkway are:
[tex]w = 1.75\,ft[/tex] and [tex]h = 0.75\,ft[/tex].